Hi! So, it's been a year or so since this was last visited. Time flies. At that time, Ken Chen gave up and I didn't want to add untested code. However, Pradeep Srinivasan asked about PCA9641 and so I have now rebased the preparatory patches to v5.0 and added the bits Ken wrote on top of the framework I wrote. Looking forward to some test results, this has only been build-tested. The actual code that does anything remotely interesting with the PCA9641 is all Kens work, and I have no knowledge if it works or not. Changes since last year (https://lkml.org/lkml/2018/3/20/205) - rebased to v5.0 - changed a couple of helper functions to return bool instead of int 0/1 - added dt-bindings patch - warped Kens patch to fit on top of the preparatory work in patches 1-3 Cheers, Peter Peter Rosin (5): i2c: mux: pca9541: use the BIT macro i2c: mux: pca9541: namespace cleanup i2c: mux: pca9541: prepare for PCA9641 support dt-bindings: i2c: pca9541: extend with compatible for PCA9641 i2c: mux: pca9541: add support for PCA9641 .../devicetree/bindings/i2c/nxp,pca9541.txt | 6 +- drivers/i2c/muxes/Kconfig | 6 +- drivers/i2c/muxes/i2c-mux-pca9541.c | 252 +++++++++++++++++---- 3 files changed, 218 insertions(+), 46 deletions(-) -- 2.11.0